Well-drilling machine.



G. R. WATSON.

WELL DRILLING MACHINE.

APPLICATION FILED JAM.3I, 191a.

Patented Dec. 17,

Inventor, GCJRWat-son Attorney GEORGE R. WATSON, OF WATERLOO, IOWA.

WELL-DRILLING MACHINE.

Application filed January 31, 1918.

T 0 all whom it may concern:

Be it known that I, GEORGE R. WATSON, a citizen of the United States of America, and a resident of Waterloo, Blaokhawk county, Iowa, have invented certain new and useful Improvements in VV'ell-Drilling Machines, of which the following is a specification.

My invention relates to improvements in well drilling machines, and the object of my improvement is to supply improved and simplified coordinated mechanism in a machine of this type, adapted to properly actuate as desired both the drilling-tool cable and the sand-drum cable, said mechanism including disconnectible clutch elements operable for said purpose.

This object I have accomplished by the mechanism which is hereinafter described and claimed, and which is illustrated in the accompanying drawings, in which Figure l is a plan view of my said improved mechanism as operatively mounted on a frame; F ig. 2 is a side elevation of said mechanism, with parts removed or taken in longitudinal section, and Fig. 3 is a transverse section of the frame taken on the line 3-3 of said Fig. 1, and looking in the direction inclicated by the arrow.

Similar numerals of reference denote corresponding parts throughout the several views.

A rectangular frame is provided composed of horizontal side-bars 32 and 33, and a medial longitudinal beam 34 connected by means of cross-beams such as 56, although only a part of the frame is shown, that which carries the mechanism particularly claimed herein, said frame being supported on carrying-wheels, such as .58.

In bearing-boxes 26 and 29 on the sidebars 32 and 33 are mounted the end-parts of a rotatable shaft 1, and the box 29 is adjustable on the side-bar 33, while the end of the shaft 1 has a crank 30 thereon which can be rocked by a rod 31, said crank having a cam not shown which bears in said box to shift the shaft 1 slightly to one side or the other, as may be necessary to move its friction-wheel 28 into frictional contact with a fixed brake-block 50. A reverse movement of said cam, the latter not shown in the drawings not being included in this invention, shifts the said friction-wheel out of contact with said brake-block and into con- Specification of Letters Patent.

Patented Dec. 17,1918.

Serial No. 214,634.

tact with the large belt-wheel 51, the latter being mounted on a shaft rotatable in bearings 52 on the beams 33 and 34 and car rying on its inner end a crank 54 provided with an anti-friction sleeve on its crankpin.

A belt 57 about the belt-wheel 51 is driven by any suitable motor. The numeral 39 denotes a pair of converging bars having orificed ends mounted to rock on a shaft 36 on each side of a windingdrum 37 fixed on the shaft, said shaft being rotatable in bearing-boxes 0n the longitudinal bars 32 and 34. The-bars 39 are brought together to provide parallel parts 11 secured together. These bars being ordinarily though not necessarily made of channel-iron, a plate 42 is fixed thereon in spaced relation by means of threaded pins 43 thus supplying a rectangular guide to receive the said sleeve 55 on the crank-pin of the crank 54. On the ends of the bar parts 41 are fixed projecting bars 44, spaced apart and provided with alined bearing-orifices to receive the ends of the shaft of a sheave 45, and a projecting block is fixedly mounted between the extremities of the bars 44. to hold them apart and to extend between spaced standards or beams 47 mounted on the cross-beam 56 of said frame, and said beams 47 carr 7 between their upper ends a sheave 48. A cable 38 is wound about the drum 37, carried under the sheave 46, thence upwardly and about the sheave i8 and has a drilling-tool e9 suspended on its depending end.

Mounted fixedly on said shaft '36 are a gear-wheel 25 and a friction-disk 35 having a handbrake 27 around it operable by means not shown.

On said shaft 1 is fixedly mounted a sleeve 2 carrying a loosely-mounted non-slidable winding-drum 3, the latter having an interior hollow open at one end and provided about said opening with a concentric ratchetrim 5. This ratchet-rim is engaged by a pawl 10 pivoted between lugs 16% on the sidebar 32, and a plate-spring 11 bears against the pawl to yieldingly keep it in engagement with said ratchet. The pawl has a depending end 12, and a pin 13 is loosely mounted in a transverse orifice in the bar 32 to move to and from the said pawl part 12.

Within the interior of the drum 3 is a clutch-member 6 adapted for mating engagement with a clutch-member 8 slidable on a key 7 on the shaft 1. 'lhe member 8 has an annular groove 9 in which are received the fork 23 fixed on a transverselyslidable bar 22, the latter slidable through a bearing-orifice in the side-bar 3:2. The outer part of the bar 22 passes through alined bearing-orifices in a bracket :21 flied on said side-bar. A lever 16 has a medial pivotal connection in lugs 15 on the outside of said side-bar, and its upper member is pivotally connected to the slide-bar 22 at 20. The lower end of said lever is pivotally connected to one end of a link 17, whose opposite end is pivoted to the end of a swingarm 18, rocked by means of a cranked rod 19. On the drum 3 is wound a cable & adapted to carry a sand-bucket on its outer end. The pin 13 lies in the path of movement inwardly of the upper part of said lever 16 for a purposeto be described.

When the mechanism has its shiftable parts in the positions shown in Figs. 1 and 3, the winding-drum 3 being loose on its bearing is held agaii'ist rotation by the pawl 10, while the shaft 1, rotated by the beltwheel 51 and friction-wheel 28, drives the gear-wheel 25 by means of the meshed pinion 24:. The shaft 36 bein thus rotated,

the winding-drum 37 is also rotated. to un wind the tool-carrying cable 38 simultaneously with an oscillatory movement of the cable at the sheave 45 due to the oscillation of the lever-arms 39-4l by the crank 5%. This action continues until the frictionwheel 28 is either shifted out of frictional contact with said belt-wheel 51, or until the pinion 24 is shifted out of mesh with said gear-Wheel The pinion is so shifted out of mesh, and the clutch-members S and 6 engaged, by shifting the sliding-bar by the use of the lever 16, link 1?, arm 18 and crank rod 19. As the upper part of the lever 16 swings inwardly it engages and pushes inwardly the sliding pin 13 against the depending stem 12 of the pawl 10, rocking the latter out of engagement with the ratchet 5. The winding-drum 3 is then free to be rotated positively to wind up the sandbucketcable a.

Reversing the rotation of the belt-wheel will cause the said train of mechanism, when the pinion 24. in mesh with the said gearwheel, to wind up the cable 38 on the winding-crum 37,

It will be seen that the actions of the mechanism are all positive, easily controlled, and that the mechanical elements are comparatively few, and grouped to occupy but a small space on the frame.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is:

1. In a well drilling machine, in combination, a rotatable shaft having a windingdrum fixed thereon, a rotatable shaft having a winding-drum loosely non-slidably mount ed thereon and provided with a clutch-ele ment, disconnectible driving-mechanism between said shafts, including a clutch-element adapted to mate cletachably with the other clutch-element to rotate said loosely mounted winding-drum when said mechanism is disconnected from said fixedlym'ounted winding-drum, said loosely-mounted winding-drum having a ratchet-rim thereon, a paWl yieldinglyresiliently mounted to detachably engage teeth :of said ratchet-rim, and means for moving said pawl out of engagement with said ratchetrim when said driving-mechanism is discon nected from the fixedly-mounted windingdrum and connected to the loosely-mounted winding-drum. a

2. In a well drilling machine, in combination, a rotatable shaft having a windingdrum fixedly mounted thereon, a rotatable shaft having a winding-drum loosely nonslidably mounted thereon and provided with a clutch-element, disconnectible drivingmechanism between said shafts includ nga movable clutch-element adapted to detachably mate with the other clutch-element to i connecting it from said fixedly-mounted winding-drum, said loosely-mounted winding-drum having a ratchet-rim thereon, a pawl yieldingly resiliently mounted to detachably engage teeth of said ratcheting and means actuated by said clutch-shifting means for moving said pawl out of engagement with said ratchet-rim when said movable clutch-element is engaged with the first-mentioned clutch-element.

Signed at Waterloo, Iowa, thisQGth day of J an. 1918.

enonen n. Warson.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, 13. G. 

